*)12 OS. GKAMIXEJE. 



reaching- the tip. Lower pale of our plant often awncd 



T. littoral e (Host)]. Producing 1 erect barren leafy clustered 



shoots. [j3. T. pycnanthum (Godr.); spike shorter and denser, spikelets 



much compressed, gl. and lower pale obtuse.] Sea-shores. P. "VII. 



E. I. 



' 5. T. acutitm (DC.) ; spike rather lax, gl. with 5 7 slender 

 elevated ribs blunt or apiculate not exceeding of the 5 8-fl. 

 spikelet, lower pale blunt mucronate, axis downy, rachis smooth 

 or slightly rough at the angles not brittle, 1. flat or with involute 

 edges the many thick closely placed ribs rough with minute sharp 

 scattered points (asperous) above, soboliferous. Sy. E. B. 1812. 

 T. laxum Fr. Ayropyron (R. & S.). St. prostrate or ascending. 

 Ribs of the 1., on each of which there is usually a deciduous row 

 of hairs, not so completely hiding the intervening hollows as in 

 Sp. 3. Gl. keeled ; keel often with forward bristles, reaching 

 the tip or forming a slight mucro. Lower pale rarely shortly 

 awned. Producing decumbent and ascending, barren, leafy, 

 clustered shoots. Sandy sea-shores. P. VII. VIII. E. S. I. 



6. T. jun'cevm (L.); spike rather loose, gl. ivith 9 llslender 

 scarcely ekvated ribs blunt equalling at least of the 4 8-fl. 

 spikelet smooth on the keel, lower pale blunt rarely mucronate, 

 axis smooth or slightly downy, rachis brittle smooth, 1. involute 

 with many thick ribs with much spreading hair above, soboli- 

 ferous. E. 13. 814. P. 63. Ayropyron (Beauv.). St. pros- 

 trate. The short hairs on the ribs of the 1. spread so as to cover 

 the in terra, spaces. Rachis easily separating above each spike- 

 lot. Gl. rounded or truncate at the tip ; ribs not reaching the 

 tip. Producing decumbent barren, leafy shoots. Sandy sea- 

 shores. P. VII. VIII. E. S. I. 



47. EL'YMTJS Linn. 



1 . E. arendrius (L.); spike upright close, rachis flat not winged, 

 gl. lanceolate downy not longer than the spikelets. E. B. 1672. 

 P. 64. Closely resembling Psamma arenaria, but readily di- 

 stinguished by its broad 1. and short ligule. Soboliferous. St. 

 34 feet high. Sandy sea-shores. P. VII. E. S. I. 



[JE. yenicitldtus (Curt.) ; spike lax, rachis winged, gl. awl- 

 shaped glabrous longer than the spikelet E. B. 1586. P. 131. 

 St. 34 feet high. Spike 1 2 feet long, usually remarkably 

 bent downwards at the second or third spikelet. In a salt 

 marsh near Gravesend. Mr. Dickson ! P. VII.] E. 



